EP 0617397 A1 19940928 - Liquid crystal display apparatus.
Title (en)
Liquid crystal display apparatus.
Title (de)
Flüssigkristallanzeigevorrichtung.
Title (fr)
Dispositif d'affichage cristaux liquides.
Publication
Application
Priority
- JP 6401793 A 19930323
- JP 10104893 A 19930427
- JP 11999893 A 19930521
Abstract (en)
A liquid crystal display apparatus includes an LCD having a plurality (N) of row electrodes and a plurality (M) of column electrodes which intersect to each other orthogonally. A plurality (n) of row electrodes of the plurality (N) of row electrodes are individually and simultaneously driven by a plurality (n) of row drivers with voltages which are determined according to Walsh functions. A VGA controller which receives a video signal outputs display data of one frame. A plurality (n) of storages individually store the display data of each of n rows which are simultaneously driven. The display data from respective storages are applied to a plurality (m) of calculation circuits. Respective calculation circuits calculate driving voltage values for respective column electrodes in accordance with the Walsh function and the display data so as to apply the same to a plurality (m) of column drivers, respectively. Respective column drivers drive the column electrodes included in each of a plurality (m) column electrode groups with the driving voltage values. <IMAGE>
IPC 1-7
IPC 8 full level
G09G 3/36 (2006.01)
CPC (source: EP US)
G09G 3/3625 (2013.01 - EP US)
Citation (search report)
- [DXDAD] EP 0507061 A2 19921007 - IN FOCUS SYSTEMS INC [US]
- [YA] CH 645473 A5 19840928 - VIDELEC AG [CH]
- [PA] EP 0569974 A2 19931118 - IN FOCUS SYSTEMS INC [US]
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 94104532 A 19940322; US 86644597 A 19970530